form {
    width: 600px;
    margin: 0 auto;
    border: 1px solid #ccc;
    box-shadow: 5px 10px 15px -8px #333;
    padding: 10px 20px;
    border-radius: 10px;
}

form .function {
    text-align: center;

}

form .function a:hover {
    background: #fff;
}


form .function a {
    padding: 3px 20px;
    border-radius: 10px;
}

